Polycrystalline Crucibles

Polycrystalline Translucent Ceramic Crucibles for TGA and DSC

CoorsTek translucent crucibles are manufactured using a unique ceramic injection molding process, making them ideal for TGA (thermogravimetry) and DSC (differential scanning calorimeter) analysis applications at the lowest cost of ownership. Sintered at very high temperatures (~1850°C) under reducing conditions, the properties of CoorsTek high-purity translucent alumina are almost identical to sapphire.

Benefits of CoorsTek translucent crucibles:

Chemically inert, corrosion, and scratch resistance—preventing any contamination or reaction in most laboratory applications

Temperature resistant up to 1800 °C

Translucent and non-porous, meeting specifications of 100% sapphire crucibles at a fraction of the cost

High-volume production and thorough testing systems ensure the highest quality at the best value

High thermal conductivity ensures accuracy of thermal measurements

High purity base material of >99.99% aluminum oxide

Our current product portfolio includes crucible sizes for most common thermoanalytical measurements and provides the precise dimensions required from analytical device suppliers.

TABLE 1: POLYCRYSTALLINE SAPPHIRE CRUCIBLES

PRODUCT

ORDERING CODE

D (mm)

H (mm)

-

PC Sapphire Crucible (30µl)

8222 301 0018.1

6.0

2.6

ME-51140843201-54321

PC Sapphire Crucible 40µl)

8222 301 0021.1

5.0

4

-

PC Sapphire Crucible (70µl)

8222 301 0014.1

6.0

4.5

ME-00024123

PC Sapphire Crucible 90µl)

8222 301 0024.2

6.5

4.5

TA 9600070.901

PC Sapphire Crucible (80µl)

8222 301 0020.1

5.0

8

DSC

PC Sapphire Crucible 85µl)

8222 301 0022.1

6.8

4

NE-399972

PC Sapphire Crucible (150µl)

8222 301 0017.1

8.0

4.5

ME-00024124

PC Sapphire Crucible 400µl)

8222 301 0023.1

8.0

12

-

PC Sapphire Crucible 850µl)

8222 301 0019.1

12.0

10

ME-51119960

Polycrystalline Crucible Lids

CoorsTek offers a compatible portfolio of crucible lids in a variety of sizes for certain thermoanalytical measurements (i.e. dilatometer for density measurements of liquid metals).

TABLE 2: POLYCRYSTALLINE SAPPHIRE CRUCIBLE LIDS

PRODUCT

ORDERING CODE

D (mm)

H (mm)

PC Sapphire Lid (5.0)

8222 301 0027.1

5

-

PC Sapphire Lid (6.0)

8222 301 0015.1

6

-

PC Sapphire Lid (6.5)

8222 301 0029.1

6.5

-

PC Sapphire Lid (6.8)

8222 301 0028.1

6.8

-

PC Sapphire Lid (8.0)

8222 301 0025.1

8

-

PC Sapphire Lid (12.0)

8222 301 0026.1

12

-

Standard white crucibles

Standard white alumina (Al2O3) alumina crucibles are also part of the CoorsTek portfolio. Matching lids and rods available upon request.